C# 如何在 Asp.net Gridview 列中为复选框单击添加事件
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How to add event for Checkbox click in Asp.net Gridview Column
提问by vikas
I have a gridview in asp where i have added first column as checkbox column.Now i want to select this column and get the id values of the row ..But I am not getting how to do it..
我在asp中有一个gridview，我在其中添加了第一列作为复选框列。现在我想选择这一列并获取行的id值..但我不知道该怎么做..
This is my Aspx code..
这是我的 Aspx 代码..
<asp:GridView ID="GridView1" runat="server" OnRowDataBound="GridView1_RowDataBound"
AutoGenerateColumns="False" BackColor="LightGoldenrodYellow"
BorderColor="Tan" BorderWidth="1px" CellPadding="2" ForeColor="Black"
GridLines="None">
<AlternatingRowStyle BackColor="PaleGoldenrod" />
<Columns>
<asp:TemplateField>
<HeaderTemplate>
<asp:CheckBox ID="chkhdr" runat="server" />
</HeaderTemplate>
<ItemTemplate>
<asp:CheckBox ID="chkChild" runat="server" />
</ItemTemplate>
</asp:TemplateField>
<asp:TemplateField HeaderText="Username">
<ItemTemplate>
<asp:Label ID="Label1" runat="server" Text='<%# Eval("col0") %>'></asp:Label>
</ItemTemplate>
</asp:TemplateField>
<asp:TemplateField HeaderText="Role(Admin)">
<ItemTemplate>
<asp:CheckBox ID="chkAdmin" runat="server" Checked='<%# Eval("col1") %>' />
</ItemTemplate>
</asp:TemplateField>
<asp:TemplateField HeaderText="Role(User)">
<ItemTemplate>
<asp:CheckBox ID="chkUser" runat="server" Checked='<%# Eval("col2") %>' />
</ItemTemplate>
</asp:TemplateField>
<asp:TemplateField HeaderText="Role(GeneralUser)">
<ItemTemplate>
<asp:CheckBox ID="chkgen" runat="server" Checked='<%# Eval("col3") %>' />
</ItemTemplate>
</asp:TemplateField>
</Columns>
</asp:GridView>
And here is my code behind file...
这是我的文件背后的代码......
protected void BindGridviewData()
{
var role = from MembershipUser u in Membership.GetAllUsers()
select new
{
User = u.UserName,
Role = string.Join(",", Roles.GetRolesForUser(u.UserName))
};
DataTable dTable = new DataTable();
dTable.Columns.Add("col0", typeof(string));
dTable.Columns.Add("col1", typeof(bool));
dTable.Columns.Add("col2", typeof(bool));
dTable.Columns.Add("col3", typeof(bool));
foreach (MembershipUser u in Membership.GetAllUsers())
{
DataRow dRow = dTable.NewRow();
dRow[0] = u.UserName;
string[] roles = Roles.GetRolesForUser(u.UserName);
dRow[1] = roles.Contains("Admin") ? true : false;
dRow[2] = roles.Contains("DPAO User") ? true : false;
dRow[3] = roles.Contains("GeneralUser") ? true : false;
dTable.Rows.Add(dRow);
}
GridView1.DataSource = dTable;
GridView1.DataBind();
}
Please Guys help me as i have no idea how to accomplish this ...Thanks in advance...
请大家帮帮我，因为我不知道如何做到这一点......提前致谢......
采纳答案by Samiey Mehdi
If you want Deleterecord by Buttontry this:
如果你想按按钮删除记录试试这个：
Add a Button outside of gridview for Delete:
在 gridview 之外添加一个用于删除的按钮：
<asp:Button ID="cmdDelete" runat="server" onclick="cmdDelete_Click" Text="Delete" />
Code behind:
后面的代码：
protected void Page_Load(object sender, EventArgs e)
{
if (!IsPostBack)
{
BindGridviewData();
}
}
protected void BindGridviewData()
{
DataTable dTable = new DataTable();
dTable.Columns.Add("col0", typeof(string));
dTable.Columns.Add("col1", typeof(bool));
dTable.Columns.Add("col2", typeof(bool));
dTable.Columns.Add("col3", typeof(bool));
foreach (MembershipUser u in Membership.GetAllUsers())
{
DataRow dRow = dTable.NewRow();
dRow[0] = u.UserName;
string[] roles = Roles.GetRolesForUser(u.UserName);
dRow[1] = roles.Contains("Admin") ? true : false;
dRow[2] = roles.Contains("DPAO User") ? true : false;
dRow[3] = roles.Contains("GeneralUser") ? true : false;
dTable.Rows.Add(dRow);
}
GridView1.DataSource = dTable;
GridView1.DataBind();
}
protected void cmdDelete_Click(object sender, EventArgs e)
{
foreach (GridViewRow row in GridView1.Rows)
{
CheckBox chk = (CheckBox)row.FindControl("chkChild");
if (chk.Checked)
{
Label username = (Label)row.FindControl("Label1");
Membership.DeleteUser(username.Text);
BindGridviewData();
}
}
}
回答by Nilesh Thakkar
You can iterate through gridivew row collection and check whether it has been selected.
您可以遍历 gridivew 行集合并检查它是否已被选中。
Add selected row (or get ID in your case) and do further processing.
添加选定的行（或在您的情况下获取 ID）并进行进一步处理。
Below URL may help you to get started:
以下 URL 可以帮助您入门：
http://www.aspsnippets.com/Articles/GridView-with-CheckBox-Get-Selected-Rows-in-ASPNet.aspx
http://www.aspsnippets.com/Articles/GridView-with-CheckBox-Get-Selected-Rows-in-ASPNet.aspx
回答by nunespascal
Use the OnCheckedChangedevent
使用OnCheckedChanged事件
<ItemTemplate>
<asp:CheckBox ID="chkgen" runat="server" Checked='<%# Eval("col3") %>'
OnCheckedChanged="chkgen_OnCheckedChanged"/>
</ItemTemplate>
CS:
CS：
protected void chkgen_OnCheckedChanged(object sender, EventArgs e)
{
int selRowIndex = ((GridViewRow)(((CheckBox)sender).Parent.Parent)).RowIndex;
CheckBox cb = (CheckBox)gridView.Rows[selRowIndex].FindControl("chkgen");
if (cb.Checked)
{
//Perform your logic
}
}
回答by Manish Sharma
try this,
尝试这个，
<asp:TemplateField HeaderText="View">
<ItemTemplate>
<asp:CheckBox ID="chkview" runat="server" AutoPostBack="true" OnCheckedChanged="chkview_CheckedChanged" />
</ItemTemplate>
</asp:TemplateField>
add checkbox change event in aspx.cs page
在 aspx.cs 页面中添加复选框更改事件
protected void chkview_CheckedChanged(object sender, EventArgs e)
{
GridViewRow row = ((GridViewRow)((CheckBox)sender).NamingContainer);
int index = row.RowIndex;
CheckBox cb1 = (CheckBox)Gridview.Rows[index].FindControl("chkview");
string yourvalue = cb1.Text;
//here you can find your control and get value(Id).
}
回答by Chandan Rajbhar
protected void GetFillDropdown()
{
string consString = ConfigurationManager.ConnectionStrings["SheetalAcademy"].ConnectionString;
SqlConnection conn = new SqlConnection(consString);
int EID = Convert.ToInt32(Session["EmailID"].ToString());
SqlCommand cmd = new SqlCommand("Select id,Course_Name from tbl_Courses where EID='" + EID + "' and Active='True'", conn);
conn.Open();
ddCourseType.Items.Clear();
ddCourseType.Items.Add("All");
ddCourseType.AppendDataBoundItems = true;
ddCourseType.DataSource = cmd.ExecuteReader();
ddCourseType.DataTextField = "Course_Name";
ddCourseType.DataValueField = "id";
ddCourseType.DataBind();
conn.Close();
}
